@Astro_JRod
Spitzer Confirms the First Habitable-Zone Earth-Sized Planet from TESS
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Joey RodriguezSAO Astronomer
Center for Astrophysics | Harvard & Smithsonian ([email protected])01/06/2020 AAS 235 Honolulu, HI
@Astro_JRodRodriguez, Vanderburg, Zieba et al. 2020, AAS Journals
Gilbert, Schlieder, Barclay et al. 2020, AAS JournalsSuissa, Wolf, Karapparu et al. 2020, AAS Journals
Rodriguez, Vanderburg, Zieba et al. 2020, AAS JournalsGilbert, Schlieder, Barclay et al. 2020, AAS Journals
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NASA’s Spitzer Space Telescope• Launched in August 2003
• Spitzer = 0.85m (~64x larger area)
• Rule out remaining false positive scenarios
• Spitzer DDT of TOI-700 d:October 22nd, 2019 (P.I. Vanderburg)
TESS = 0.105m
@Astro_JRod4
Exoplanets 101: Transits
https://svs.gsfc.nasa.gov/
TOI-700 c Transit with LCOGT
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TOI-700 c = 2.65 Earth Radii, P = 16.05 daysRodriguez, Vanderburg, Zieba et al. 2020, AAS Journals
TOI-700 d Transit with Spitzer
6Rodriguez, Vanderburg, Zieba et al. 2020, AAS Journals
TOI-700 d’s ParametersIs TOI-700 d Rocky?
Need Radial Velocities!• TOI-700 d = 1.22 Earth Radii, P = 37.42 days• TESS + Spitzer improve confidence on Radius and Period
@Astro_JRod7https://svs.gsfc.nasa.gov/ TOI-700 d tugs the star at 80 cm/s
Future Mass Measurements: Radial Velocity
Future Mass Measurements: Radial Velocity
8https://kids.guinnessworldrecords.com/
Bertie’s speed = 28 cm/s
TOI-700 d tugs the star at 80 cm/s
9Rodriguez, Vanderburg, Zieba et al. 2020, AAS Journals
Prospects for Future Mass Measurements
Light Received (Relative to Earth)
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Contact Information
Joey Rodriguez, SAO Astronomer• Twitter: @Astro_JRod• Email: [email protected]• https://sites.google.com/site/josepherodriguezjr/